81042008 is an even 8-digits composite number following 81042007
and preceding 81042009 . In scientific notation, it is written as 8.1042008 × 10^7.
The sum of its digits is 23. It has a total of 6 prime factors and 32 positive divisors.
There are 38949120 positive integers (up to 81042008) that are relatively prime to 81042008.
81042008 has 32 divisors, whose sum is 157896000
The reverse of 81042008 is 80024018
Previous prime number is 271
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighty-one million forty-two thousand eight
Scientific notation
8.1042008 × 10^7
Engineering notation
8.1042008 × 10^6
Prime Factorization
2 × 2 × 2 × 29 × 271 × 1289
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
20260502
Product of the distinct prime numbers
The prime factorization of 81042008 is 2 × 2 × 2 × 29 × 271 × 1289.
Since it has a total of 6 prime factors.
1 , 4 , 31 , 32 , 53 , 838 , 618 , 99 , 55928 , 88428 , 454737 , 48901 , 5497947 , 1895713 , 21698266 , 51174071 , 188602375 , 846979954 , 1979513014 , 6605853681
n×2
162084016
n×3
243126024
n×4
324168032
n×5
405210040
n÷2
40521004
n÷3
27014002.666667
n÷3
20260502
n÷5
16208401.6
n2
6567807060672064
n3
5.3226827235344E+23
n4
4.3136089586214E+31
n5
3.4958353173347E+39
2 √n
9002.3334752718
3 √n
432.749655721
4 √n
94.880627502519
5 √n
38.1717471702
1 , 2 , 4 , 8 , 29 , 58 , 116 , 232 , 271 , 542 , 1084 , 1289 , 2168 , 2578 , 5156 , 7859 , 10312 , 15718 , 31436 , 37381 , 62872 , 74762 , 149524 , 299048 , 349319 , 698638 , 1397276 , 2794552 , 10130251 , 20260502 , 40521004 , 81042008
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81042007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81042008 can be divided by 32 positive divisors.
The sum of these divisors (counting 81042008) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110101001001101001011000
3
Ternary
12122111100201212
4
Quaternary
10311021221120
5
Quinary
131221321013
6
Senary
12013002252
8
Octal
465115130
10
Decimal
81042008
12
Duodecimal
23183388
16
Hexadecimal
4d49a58
20
Vigesimal
156a508
36
Base36
1c90ew
md5
f28b3828dc5706b2d2c04ca6aa6dab87
sha1
04417852203ebf28bead2e07e31c051c57afb6cf
sha256
68ae9373c5d2b80b3d824557359e6ecea23fbfc9c0c93e408f773f6dd191e285
sha512
2300d5f83072cc4419445a9d784a03550af7e7fbcad3593d456d9428c9606cf1ae69603a22f6fece291ed8eba63baa51748ebfa9ebdbbe16854a6ce7abd7451e
ripemd-160
bc2d61ab13579447495a080c97734b92757fcdb0
Diameter
162084016
Circumference
509201953.92993
Area
2.0633374412003E+16
Volume
2.2295601255527E+24
Surface area
8.253349764801E+16
Circumference
509201953.92993
Perimeter
324168032
Area
6567807060672064
Diagonal
114610706.83555
Surface area
39406842364032384
Volume
5.3226827235344E+23
Space diagonal
140368875.4034
Perimeter
243126024
Area
2.8439438808484E+15
Altitude
70184437.701702
Surface area
2.8439438808484E+15
Volume
6.2728417465261E+22
Height
38203568.945183